The list of ship decommissionings in 2011 includes a chronological list of ships decommissioned in 2011.
| Operator | Ship | Flag | Class and type | Pennant | Fate | Other notes | |
|---|---|---|---|---|---|---|---|
| 8 February | Chatham | Type 22 frigate | F87 | Scrapped | [1] | ||
| 24 February | Manchester | Type 42 destroyer | D95 | Scrapped | [2] | ||
| 11 March | Ark Royal | Invincible-class aircraft carrier | R07 | Scrapped | [3] | ||
| 28 March | Hamilton | Hamilton-class cutter | WHEC-715 | Transferred to Philippine Navy | [4] Renamed BRP Gregorio del Pilar | ||
| 11 March | Largs Bay | Bay-class landing ship | L3006 | Sold to Australia | Renamed HMAS Choules | ||
| 7 April | Campbeltown | Type 22 frigate | F86 | Scrapped | [5] | ||
| 23 June | Cumberland | Type 22 frigate | F85 | Scrapped | [6] | ||
| 30 June | Gloucester | Type 42 destroyer | D96 | Scrapped | [7] | ||
| 30 June | Cornwall | Type 22 frigate | F99 | Scrapped | [8] | ||
| 30 September | Cleveland | Austin-class amphibious transport dock | LPD-7 | inactive reserve | [9] | ||
{{cite web}}: CS1 maint: archived copy as title (link)